Nelson edwa



NyBDW-ARDS.- CARPET UNDERLIB.

No. 105,661. y Patented L111151661870.

` otherwise be; and

" NELSON-EDWARDS, or J-ERICHQ, VEBMON'L.. l

Laan-3 Pam: No. 105,661, ama .my 26,1810..

:rimuove-Maur m cmn'r "uNnnnLm" The Schedule referred to in than4Lettori vPotent and making par?. of the lama.

To `all whom it mag/camera:

Be it known (that I, NELSON EDWARDB, of Jericho,l

in the county of, Chittenden and 'State of Vermont, have invented a-newand useful Improvement in Car f pet Underlies; and I dc .herebydeclarethat the following is a full, clear, and exact description'jthereof, which 4will enable others skilled in the art to make A, anduse thesame, reference being had to` the' accompanyngdrawing forlingpart of this specica? "Wtiom lhe object of this inventionis to provideecient means for preventing the rise of dust From'carpets ln sweeping orwalking on them, and also for protecting the carpet, and rendering itmore durable than it would It consists in an elastic'underlie ot'cellular construe `tion, provided with self-closing slits or oriices,ar-

ranged and operating as hereinafter. more fully de-V z scribed.

In the accompanying dlawngl Figure 1 represents `a section ofthennderlieas it appears en the door, the carpet being broken away.

Figure 2shows the under or reverse side of the underlie.

v Figure 3 is a cross -or vertical section of jig. 2 on `the line a: x.l

Similar letters of yreferenceindicate corresponding parts. l v u Y" A isthe underlieI upon which the carpet is placed. 'B is the carpet. j

The underlie is'formed of Indie rubber, (either in whole or in part,) orof some other elastic substance V,or material, in a mold, so that cellsmay be formed in each side, and be separated by a thin diaphragm. Crepresents thepcell's infthe npperside, and .Dthe'cells in the underside. These cells are separatednear the middle ofthe underlie by a'thndiaphragm, seen in g.3, but

-which diaphragm is cnt or slit through at the bottom of the uppercells, as seen at e.

TheI cells are opposite cach other, as seen in the drawing.

The'upper cells are separate and distinctfrom each other, but the cellsin the under side 4are connected 'together by recesses, f, (see fig. 3)

.lhe dust and dirt which work throughthe carpet are received in thecells G.

In walking over thecarpet, the pressure of the foot will, owing tot-heelasticity of the underlie, force the air and dirt contained in thosecells, through the slits e, into the lower cells. When the pressure outhe carpet ceases, the slits close-from the elasticity ot' the material,thus confining the dust and dirt upon the surface -of `the floonj Th`fadvantages of this description `oi underlie are- The dirt andy dustarerdisposed of,and prevented Y `froxnrisng in the apartment andcontaminating the atmosphere.

lhe vcarpet is not worn by grinding the dirt beneath it on the floor,and its elasticity gives the carpet a soft and pleasant tread.

Y Having thus describcd'my invention,

I- clailn as new and desireto .secure by Letters v `An-elastic carpetunderlie with cells -or recesses injts' sides, (which are connectedtogether by self-closing sli,ts,) and operating subst-antiallyas hereinshown and described, for the purposes set forth. A

. NELSON EDWARDS.

Witnesses WILLIAM Gmswoma,

